Estancia Mallín Grande, Cerro Crettón (Cretaceous of Argentina)

Where: Chubut, Argentina (44.9° S, 69.2° W: paleocoordinates 52.0° S, 45.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Upper Member (Castillo Formation), Cenomanian (100.5 - 93.9 Ma)

• originally listed as "Cerro Castillo Formation"; top of Fm dated 94.2-97.8 Ma

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by Ferello & Flores in 1949

Collection methods: surface (in situ),

• discovered during expedition from Yacimientos Petroliíeros Fiscales (YPF); tooth "was found together with large bones, which were for obvious reasons not collected."

Primary reference: G. del Corro. 1974. Un nuevo megalosaurio (Carnosaurio) del Crétacico de Chubut (Argentina) [A new megalosaur (Carnosauria) from the Cretaceous of Chubut (Argentina)]. Communicaciones del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" e Institutio Nacional de Investigacion de las Ciencias Naturales: Paleontología 1(5):37-44 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90788: authorized by Matthew Carrano, entered by Matthew Carrano on 17.08.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda - Abelisauridae
Megalosaurus chubutensis n. sp. del Corro 1974 ceratosaur
MACN 18.189